f67d960320
The thing we don't support in this handler is rebasing a change onto a descendant (which would require more work to reorder the commits). This descendant check is easily done from the git repository, rather than using a custom implementation based on PatchSetAncestors (which may be inaccurate anyway). Add Repository and RevWalk arguments to the relevant method in RebaseChange, so we can reuse the same instances we used for the isMergedInto call. Change-Id: I4741174dc37d00e803aafb2aceef0ffe233b5132